A continuous desiccant delivery method

Abstract

The application discloses a continuous drying agent feeding method, a cutter servo motor shaft drives the cutter to reciprocate according to a set speed curve, when the cutter servo motor shaft rotates to a set angle, a feeding servo motor shaft rotates a first set angle, when a color mark detection component detects the color mark, the feeding servo motor shaft rotates a second set angle, the color mark transmission is in place, and the cutter completes shearing. The cutter does not stop and always reciprocates according to the set speed curve, the feeding servo motor shaft starts feeding transmission according to the angle of the cutter servo motor shaft. When the cutter servo motor shaft moves to the set angle, the feeding servo motor shaft starts relative displacement mode and searches for the color mark, when the color mark detection component detects the color mark, the feeding servo motor shaft adopts absolute positioning mode, and the color mark is transmitted to the set position. In the normal working process, the cutter does not need to stop, the feeding of the drying agent is more closely matched with the shearing of the cutter, and the production speed is faster.

Description

Technical Field

[0001] This invention relates to packaging methods for food and pharmaceutical packaging equipment, and more particularly to a continuous desiccant dispensing method. Background Technology

[0002] Currently, desiccants are often placed inside product packaging bags during product processing to prevent moisture absorption. Desiccant dispensing is a crucial step in the pharmaceutical and health product packaging machinery industry. A prior application (CN116040061A) discloses a continuous desiccant dispensing method. In this method, a bag-pulling servo motor uses a speed mode to deliver desiccant and locate a color mark. When the color mark is detected, the servo motor uses a relative positioning mode to move the desiccant bag a certain offset distance before stopping. After the bag-pulling servo motor stops, a cutting servo motor starts to shear the desiccant bag. This method suffers from poor coordination between the bag-pulling servo motor and the cutting blade, limiting further improvements in production efficiency. Furthermore, the rapid reciprocating movement of the cutting blade introduces motion impact, hindering smooth cutting. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a continuous desiccant dispensing method with closer cooperation between the feeding servo motor and the cutter, which is conducive to further improving production efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A continuous desiccant dispensing method includes a shearing step:

[0006] The cutter servo motor shaft drives the cutter to reciprocate according to the set speed curve. When the cutter servo motor shaft rotates to the set angle, the feed servo motor shaft rotates to the first set angle. When the color mark detection component detects the color mark, the feed servo motor shaft rotates to the second set angle, the color mark is transmitted into place, and the cutter completes the cutting.

[0007] As a further improvement to the above technical solution: if the speed of the cutter at the beginning of the cutting is V1 and the speed of the cutter at the end of the cutting is V2, then V1 > V2.

[0008] As a further improvement to the above technical solution, the continuous desiccant dispensing method specifically includes the following steps:

[0009] S1. The bottle infeed screw servo motor shaft serves as the main shaft and rotates continuously at a set speed. The feeding servo motor shaft is associated with the main shaft.

[0010] S2. When the feeding station detects a bottle, the cutter servo motor shaft is associated with the main shaft.

[0011] S3, Shearing process;

[0012] S4. The feeding servo motor shaft feeds the sheared desiccant into the bottle;

[0013] S5, return to S1.

[0014] As a further improvement to the above technical solution: In S2, when the feeding station does not detect the bottle, the cutter servo motor shaft waits at the origin position.

[0015] As a further improvement to the above technical solution: In S3, the spindle stops when the color mark detection component does not detect a color mark.

[0016] Compared with the prior art, the advantages of the present invention are as follows:

[0017] This invention discloses a continuous desiccant dispensing method, in which a cutter servo motor shaft drives a cutter to continuously perform reciprocating shearing motions according to a set speed curve. A feeding servo motor shaft initiates a feeding conveying action based on the angle of the cutter servo motor shaft. When the cutter servo motor shaft reaches the set angle, the feeding servo motor shaft activates a relative displacement mode to locate a color mark. When the color mark detection component detects the color mark, the feeding servo motor shaft adopts an absolute positioning mode, transmitting the color mark to the set position (current position + offset distance). After the cutter action, the feeding servo motor shaft waits for the next angle signal from the cutter servo motor shaft before starting the next motion cycle. During normal operation, the cutter does not need to stop, resulting in closer coordination between desiccant delivery and cutter shearing. Repeated experiments show that this invention achieves faster production speeds. Meanwhile, since the cutter continuously performs reciprocating shearing motions according to the set speed curve without stopping, the cutter's movement trajectory can be changed to shorten the cutter's movement distance as much as possible, thereby further improving the production speed (the cutter must retract more than a certain distance to ensure the normal falling of the desiccant, but if the cutter retracts too far, there will be an ineffective stroke, which will take longer and reduce production efficiency).

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the desiccant dispensing device involved in the continuous desiccant dispensing method of the present invention.

[0020] Figure 2 This is a schematic flowchart of the continuous desiccant dispensing method of the present invention.

[0021] Figure 3 This is a schematic diagram of the color mark descent process in the continuous desiccant dispensing method of the present invention.

[0022] The labels in the diagram represent:

[0023] 1. Cutter servo motor shaft; 2. Feed servo motor shaft; 3. Color mark detection component; 31. Color mark; 4. Bottle feed screw servo motor shaft; 5. Feeding servo motor shaft. Detailed Implementation

[0024] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Figures 1 to 3 An embodiment of the continuous desiccant dispensing method of the present invention is shown. This embodiment of the continuous desiccant dispensing method includes a shearing step:

[0029] The cutter servo motor shaft 1 drives the cutter to reciprocate according to the set speed curve. When the cutter servo motor shaft 1 rotates to the set angle, the feeding servo motor shaft 2 rotates to the first set angle. When the color mark detection component 3 detects the color mark 31, the feeding servo motor shaft 2 rotates to the second set angle, the color mark 31 is transmitted into place, and the cutter completes the cutting.

[0030] In this embodiment of the continuous desiccant dispensing method, the cutter servo motor shaft 1 drives the cutter to continuously perform a reciprocating shearing motion according to a set speed curve. The feeding servo motor shaft 2 starts the feeding conveying action according to the angle of the cutter servo motor shaft 1. When the cutter servo motor shaft 1 moves to the set angle, the feeding servo motor shaft 2 starts the relative displacement mode to search for the color mark 31. When the color mark detection component 3 detects the color mark 31 (i.e., ... Figure 3 (The color mark detection position in the middle), the feeding servo motor shaft 2 adopts absolute positioning mode, and the color mark 31 is transmitted to the set position (current position + offset distance), that is Figure 3 The cutting position of the cutter is specified. After the cutter moves, the feed servo motor shaft 2 waits for the next angle signal from the cutter servo motor shaft 1 before starting the next motion cycle. In this embodiment, the cutter does not need to stop during normal operation of the continuous desiccant dispensing method. The desiccant delivery and the cutter's shearing are more closely coordinated, and repeated tests show that the production speed is faster. At the same time, since the cutter continuously performs reciprocating shearing actions according to the set speed curve without stopping, the cutter's motion trajectory can be changed to shorten the cutter's action distance as much as possible, thereby further improving the production speed (the cutter must retract more than a certain distance to ensure the normal fall of the desiccant, but if the cutter retracts too far, there will be an ineffective stroke, which will increase the time and reduce production efficiency).

[0031] Furthermore, in this embodiment, the speed of the cutter at the start of cutting is V1, and the speed of the cutter at the end of cutting is V2, so V1 > V2. The cutter moves quickly during the cutting process and slowly at the end of cutting. On the one hand, this helps to ensure that the cutting speed is as fast as possible, further improving production efficiency; on the other hand, it can reduce the impact of the cutter's movement and ensure that the cutter makes a smooth cut.

[0032] In this embodiment, the continuous desiccant dispensing method specifically includes the following steps:

[0033] S1. The bottle feeding screw servo motor shaft 4 serves as the main shaft and rotates continuously at a set speed. The feeding servo motor shaft 5 is associated with the main shaft.

[0034] S2. When the feeding station detects a bottle, the cutter servo motor shaft 1 is associated with the main shaft. That is, the cutter servo motor shaft 1 is associated with the main shaft only when the main shaft delivers the bottle into place, so as to avoid the cutter from performing unnecessary actions.

[0035] S3, Shearing process;

[0036] S4. The feeding servo motor shaft 5 feeds the sheared desiccant into the bottle. Since the feeding servo motor shaft 5 is associated with the main shaft in step S1, it is beneficial to accurately feed the sheared desiccant into the bottle during the process of the main shaft driving the bottle to move.

[0037] S5, return to S1.

[0038] Furthermore, in this embodiment, in step S2, when no bottle is detected at the feeding station, the cutter servo motor shaft 1 waits at the origin position. The presence or absence of a bottle at the feeding station controls the switching of the cutter state, achieving the function of not adding desiccant when there is no bottle, thus improving reliability.

[0039] Furthermore, in this embodiment, in S3, when the color mark detection component 3 does not detect the color mark 31, the main shaft stops. Since the cutter servo motor shaft 1 and the feeding servo motor shaft 5 are associated with the main shaft, they will also stop along with the main shaft to avoid malfunctions. The feeding servo motor shaft 2 is an independently moving shaft, and its rotation angle is related to that of the cutter servo motor shaft 1.

[0040] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A continuous desiccant dispensing method, characterized in that: Including the shearing process: The cutter servo motor shaft (1) drives the cutter to move back and forth according to the set speed curve. When the cutter servo motor shaft (1) rotates to the set angle, the feed servo motor shaft (2) rotates to the first set angle. When the color mark detection component (3) detects the color mark (31), the feed servo motor shaft (2) rotates to the second set angle, the color mark (31) is transferred into place, and the cutter completes the cutting.

2. The continuous desiccant dispensing method according to claim 1, characterized in that: If the speed of the cutter at the start of cutting is V1 and the speed at the end of cutting is V2, then V1 > V2.

3. The continuous desiccant dispensing method according to claim 1 or 2, characterized in that: Specifically, the following procedures are included: S1. The bottle feeding screw servo motor shaft (4) serves as the main shaft and rotates continuously at a set speed. The feeding servo motor shaft (5) is associated with the main shaft. S2. When the feeding station detects a bottle, the cutter servo motor shaft (1) is associated with the main shaft. S3, Shearing process; S4, the feeding servo motor shaft (5) feeds the sheared desiccant into the bottle; S5, return to S1.

4. The continuous desiccant dispensing method according to claim 3, characterized in that: In S2, when the feeding station does not detect the bottle, the cutter servo motor shaft (1) waits at the origin position.

5. The continuous desiccant dispensing method according to claim 3, characterized in that: In S3, the spindle stops when the color mark detection component (3) does not detect the color mark (31).

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